How to parse such json in CI?

Question

CodeIgniter

Greetings! I work in codeigniter, the following json is formed:

[{"kind":24,"val":"2","day":1},{"kind":24,"val":"2","day":2},{"kind":24,"val":"2","day":3}]

send with ajax

var data_array = new Array();
    $("input[type='checkbox']").each(function(){
       var item = {};
        for(var i in $(this).data()){
            item[i] = $(this).data(i);
            item['val'] = $(this).val();
        }
        data_array.push(item);
    });
var data = JSON.stringify(data_array);
$.ajax({
    type:"POST",
    url:"/welcome/savejournal",
    contentType : "application/json",
    data: data,
    success:function(data){ console.log(data); },
      error:function(data){console.warn(data);}
    })

, in the controller I accept var_dump($this->input->post()) shows an empty array.
I checked, the data is gone. But they are not visible in the controller. Where did I go wrong?

Answer 1

Good afternoon.
1. Try to accept just $_POST - if it is not empty, then the problem is inside the CI's Input class
2. Just in case, make sure that you do not add the last slash to the urls in htaccess, if you do, then $_POST will come empty, should be sent to url: "/welcome/savejournal / "
3. For the test, send not POST but GET and see if there is data or not.
4. Just make sure that the controller does not die with a 500 error. You never know.

Answer 2

Handles json_decode($this->input->raw_input_stream, true). Better yet, wrap it in middleware.